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纳米TiO_2—两性淀粉对脱墨浆新闻纸抄造过程中DCS去除的研究 被引量:1

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摘要 研究了两性淀粉(AmS)、纳米TiO_2单元体系、纳米TiO_2-AmS双元体系、阳离子淀粉(CS)/阳离子聚丙烯酰胺(CPAM)/阴离子聚丙烯酰胺(APAM)三元体系对全脱墨浆(DIP)的动态絮聚作用,并考察这几种助留助滤体系在白水循环使用情况下,对抄造纸页部分性能及白水中DCS去除效果的影响。动态絮聚实验表明:AmS单元体系几乎没有去除DCS的作用,增大用量还会使体系的DCS残留量更高;纳米TiO_2单元体系有一定的DCS去除效果;TiO_2-AmS双元体系不仅提高了DCS的去除效果,还降低试剂用量,当其用量为0.16%(TiO_2)-0.4%(AmS)时,DCS的去除率达到50%以上;三元体系的助留助滤效果较好,但是DCS的去除效果一般。白水循环使用抄纸实验表明:纳米TiO_2-AmS体系对残余油墨的捕集能力最强,对DCS的去除效果也最好,在白水循环抄纸进行到22次时,DCS的富集量达到平衡,白水离心处理后COD_(Cr)值为43 mg/L左右,较好抑制了DCS的进一步富集;三元体系在循环进行到52次时,其离心处理后白水COD_(Cr)值稳定在65 mg/L左右。
作者 寇顺利
机构地区 浙江科技学院
出处 《华东纸业》 2011年第5期60-64,76,共6页 Shanghai Paper Making
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参考文献13

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二级参考文献31

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